APA (7th ed.) Citation

United States. Department of the Interior. (1940). Attracting birds. [s.n.].

Chicago Style (17th ed.) Citation

United States. Department of the Interior. Attracting Birds. [Washington]: [s.n.], 1940.

MLA (9th ed.) Citation

United States. Department of the Interior. Attracting Birds. [s.n.], 1940.

Warning: These citations may not always be 100% accurate.